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package com.dm.timertask;

import java.text.ParseException;
import org.quartz.CronTrigger;
import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.impl.StdSchedulerFactory;

/**
 * 定时任务管理器
 *
 * @author DUAN
 */
public class QuartzManager {

    private static SchedulerFactory sf = new StdSchedulerFactory();
    private static String JOB_GROUP_NAME = "group1";
    private static String TRIGGER_GROUP_NAME = "trigger1";

    /**
     * 添加一个定时任务，使用默认的任务组名，触发器名，触发器组名
     *
     * @param jobName 任务名
     * @param job 任务
     * @param time 时间设置，参考quartz说明文档
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void addJob(String jobName, Job job, String time)
            throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, job.getClass());//任务名，任务组，任务执行类  
        //触发器  
        CronTrigger trigger = new CronTrigger(jobName, TRIGGER_GROUP_NAME) {
        };//触发器名,触发器组  

        trigger.setCronExpression(time);//触发器时间设定  
        sched.scheduleJob(jobDetail, trigger);
        //启动  
        if (!sched.isShutdown()) {
            sched.start();
        }
    }

    /**
     * 添加一个定时任务
     *
     * @param jobName 任务名
     * @param jobGroupName 任务组名
     * @param triggerName 触发器名
     * @param triggerGroupName 触发器组名
     * @param job 任务
     * @param time 时间设置，参考quartz说明文档
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void addJob(String jobName, String jobGroupName,
            String triggerName, String triggerGroupName,
            Job job, String time)
            throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        JobDetail jobDetail = new JobDetail(jobName, jobGroupName, job.getClass());//任务名，任务组，任务执行类  
        //触发器  
        CronTrigger trigger
                = new CronTrigger(triggerName, triggerGroupName);//触发器名,触发器组  
        trigger.setCronExpression(time);//触发器时间设定  
        sched.scheduleJob(jobDetail, trigger);
        if (!sched.isShutdown()) {
            sched.start();
        }
    }

    /**
     * 修改一个任务的触发时间(使用默认的任务组名，触发器名，触发器组名)
     *
     * @param jobName
     * @param time
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void modifyJobTime(String jobName, String time)
            throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        Trigger trigger = sched.getTrigger(jobName, TRIGGER_GROUP_NAME);
        if (trigger != null) {
            CronTrigger ct = (CronTrigger) trigger;
            ct.setCronExpression(time);
            sched.resumeTrigger(jobName, TRIGGER_GROUP_NAME);
        }
    }

    /**
     * 修改一个任务的触发时间
     *
     * @param triggerName
     * @param triggerGroupName
     * @param time
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void modifyJobTime(String triggerName, String triggerGroupName,
            String time)
            throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        Trigger trigger = sched.getTrigger(triggerName, triggerGroupName);
        if (trigger != null) {
            CronTrigger ct = (CronTrigger) trigger;
            //修改时间  
            ct.setCronExpression(time);
            //重启触发器  
            sched.resumeTrigger(triggerName, triggerGroupName);
        }
    }

    /**
     * 移除一个任务(使用默认的任务组名，触发器名，触发器组名)
     *
     * @param jobName
     * @throws SchedulerException
     */
    public static void removeJob(String jobName)
            throws SchedulerException {
        Scheduler sched = sf.getScheduler();
        sched.pauseTrigger(jobName, TRIGGER_GROUP_NAME);//停止触发器  
        sched.unscheduleJob(jobName, TRIGGER_GROUP_NAME);//移除触发器  
        sched.deleteJob(jobName, JOB_GROUP_NAME);//删除任务  
    }

    /**
     * 移除一个任务
     *
     * @param jobName
     * @param jobGroupName
     * @param triggerName
     * @param triggerGroupName
     * @throws SchedulerException
     */
    public static void removeJob(String jobName, String jobGroupName,
            String triggerName, String triggerGroupName)
            throws SchedulerException {
        Scheduler sched = sf.getScheduler();
        sched.pauseTrigger(triggerName, triggerGroupName);//停止触发器  
        sched.unscheduleJob(triggerName, triggerGroupName);//移除触发器  
        sched.deleteJob(jobName, jobGroupName);//删除任务  
    }
}
